なna-adjective
subtle
bimyouda
meaning: is subtle
state
feeling
examples
味はちょっと微妙だな。
aji wa chotto bimyou da na.
The taste is a bit iffy. casual
二つの色の違いは微妙です。
futatsu no iro no chigai wa bimyou desu.
The difference between the two colours is subtle. neutral